From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7E11A68 for ; Thu, 18 Nov 2021 14:04:06 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 6AC9F60EFD; Thu, 18 Nov 2021 14:04:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637244246; bh=aFuf6PjT2umDBtmt3iZAqjlgnwanIU0UpXbezkUh7wU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=fbtU2Nlucgw58hMJO0BTHYJIJ7/a4gxFaWMdZjk6M2jmMqm21+5VuN2p1hC/3sV1b +u8LR7gxDSS76m14cwqiqz+Dnf2DYU5OX0h3oK/Ym8KJ2JrHmmS6dykt+QJii6B1cR xOdz4bwV/XBevwnElRxnHaBTcT4Ox5RMk/m5lqwE= Date: Thu, 18 Nov 2021 15:04:03 +0100 From: Greg KH To: Thorsten Leemhuis Cc: Chris Rankin , linux-kernel@vger.kernel.org, stable@vger.kernel.org, "regressions@lists.linux.dev" Subject: Re: [OOPS] Linux 5.14.19 crashes and burns! Message-ID: References: <99d07599-3d72-d389-cfc2-f463230037a5@leemhuis.info> Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Nov 18, 2021 at 10:29:14AM +0100, Greg KH wrote: > On Thu, Nov 18, 2021 at 10:15:23AM +0100, Thorsten Leemhuis wrote: > > Hey Greg! > > > > On 18.11.21 09:57, Thorsten Leemhuis wrote: > > > Lo! CCing stable and regressions list. FWIW, I have a Fedora 34 VM that > > > stopped booting with 5.14.19 as well. More inline: > > > > > > On 18.11.21 01:55, Chris Rankin wrote: > > >> > > >> I have tried to boot a vanilla 5.14.19 kernel, but it crashes when > > >> "switching root" away from the initramfs. ("Unable to handle page > > >> fault...) > > >> > > >> Google's "copy text from image" feature has managed to scrape this > > >> information from my phone camera: > > >> > > >> 1tch Noo > > >> BUG: unable to handle page fault for address: ffffc980006cfeDS > > >> #PF: supervisor read access in kernel mode #PF: error_code (8x8888) - > > >> not-present page > > >> PGD 100000067 P4D 100000067 PUD 18885e867 PMD 104486867 PTE 8 > > >> Oops: 0888 [#1] PREEMPT SMP PTI > > >> CPU: 6 PID: 1 Comm: systemd Tainted: G Hardware name: Gigabyte > > >> Technology Co., Ltd. EX58-UD3R/EX58-UD3R, BIOS FB 05/04/2009 > > >> 5.14.19 #1 > > >> RIP: 0010: __unwind_start+8xb5/8x15f > > >> Code: 48 8d 8d 88 88 88 88 48 89 e2 48 89 e8 48 89 4d 48 48 89 55 38 > > >> 48 RSP: 0018:ffffc90088823bf0 EFLAGS: 00010006 > > >> RAX: ffffc900006efde8 RBX: 0000000000000000 RCX: 08 RDX: > > >> ffffc900006efe18 RSI : ffff88818a9f6c80 RDI: ffffc > > >> RBP: ffffc90808823c18 R08: 00000000000001de R89: R10: ffff888107d20000 > > >> R11: ffff888183b4ba88 R12: ffffc900006ef dell > > >> R13: ffff88810a9f73bc R14: ffff888103c58480 R15: FS: 00007f528fd19b40 > > >> (0800) GS:ffff888343488808 (0888) knl6S: > > >> CS: 0818 DS: 0000 ES: 0000 CRO: 0888000088858833 > > >> CR2: ffffc900006efe88 CR3: 088080818186a888 CR4: 8888 > > >> Call Trace: > > >> > > >> get_wchan+8x42/8x8f > > >> get_wchan+8x45/8x59 > > >> do_task_stat+0x3ab/0x38 > > >> proc_single_show+8x1e/8x68 > > >> seq_read_iter+0x151/8x342 seq_read+8xf1/8x117 > > >> uf's_read+Bxa3/8x183 > > >> ksys_read+8x71/8xb9 do_syscal1_64+8x6d/8x88 > > >> entry_SYSCALL_64_after_huframe+8x11/8xne > > >> RIP: 8033:8x7f529884f832 > > >> Code: c0 e9 b2 fe ff ff 50 48 8d 3d ea 2e Bc 80 68 65 £9 01 00 0f 16 44 000 > > >> RSP: 082b:00087ffed3b91f18 EFLAGS: 88888246 ORIG RAX: > > >> RAX: ffffffffffffffda RBX: 8888559462036658 RCX: 000071529084/83 > > >> RDX: 0000000000000100 RSI: 8088559462c90b78 RDI: > > >> RBP: 000071529894a300 BAR: > > >> te fa > > >> > > >> And also this: > > >> > > >> do_syscall_64+0x6d/0x80 > > >> entry_SYSCALL_64_after_huframe+0x44/0xae > > >> RIP: 8033:0x7f529884f832 > > >> Code: c0 e9 b2 fe ff ff 50 48 8d 3d ea Ze Bc 80 e8 b5 f9 01 00 0f 1f > > >> 44 00 00 f3 Bf 1e fa 64 8b 84 25 18 88 RSP: 082b:00087ffed3b91f 18 > > >> EFLAGS: 00000246 ORIG_RAX: 0000000000000000 > > >> RAX: ffffffffffffffda RBX: 0000559462c36650 RCX: 000071529084f832 RDX: > > >> 0000000000000400 RSI: 0000559462c90b70 RDI: 0000000000000006 > > >> RBP: 000071529094a3a0 R08: 0000000000000006 RO9: 0000000000000001 R18: > > >> 0000000000001000 R11: 0000000000000246 R12: 00007f528fd198f0 > > >> R13: 0000000000000168 R14: 00007f52909497a0 R15: 00000000000001468 > > >> > > >> Modules linked in: ext4 crc32c_generic crc16 mbcache jbd2 sr_mod > > >> sd_mod cdrom hid_microsoft usbhid amdgpu uh ci drm_kms_helper ehci_hcd > > >> cf bf illrect syscopyarea cfbimgblt sysfillrect sysimgblt xhci pci > > >> xhci_hcd fb_sys_ mod usb_common drm_panel_orientation_quirks > > >> ipmi_devintf ipmi_msghandler msr sha256_ssse3 sha256_generic ipu CRZ: > > >> ffffc900006efe08 > > >> --- end trace 9771b79967a8dd89 ]--- RIP: 8010:_unwind_start+8xb5/0x15f > > >> Code: 48 8d 8d 00 00 00 00 48 89 e2 48 89 e8 48 89 4d 48 48 89 55 38 > > >> 48 89 45 40 eb 29 48 8b 86 98 Ba 80 00 RSP: 0818:ffffc90000023bf0 > > >> EFLAGS: 00010006 RAX: ffffc900006efde0 RBX: 0000000000000000 RCX: > > >> 0000000000000000 > > >> RDX: ffffc900006efe18 RSI: ffff88810a9f6c00 RDI: ffffc90000023c78 RBP: > > >> ffffc98800023c18 R08: 00000000000001de R09: 00000000005b20c6 > > >> R10: ffff888107120000 R11: ffff888103b4ba80 R12: ffffc900006ef de > > >> R13: ffff88818a9f73bc R14: ffff888103c50480 R15: 0000000000000000 FS: > > >> 00007f528fd19b40(8000) GS:ffff888343180000 (0800) > > >> knlGS:0000000000000000 CS: 0810 DS: 0000 ES: 0000 CRO: > > >> 0000000080050033 > > >> CR2: ffffc908806efe88 CR3: 000000010186a000 CR4: 00000000000006e0 > > >> note: systemd [1] exited with preempt_count 1 > > >> Kernel panic - not syncing: Attempted to kill init! > > >> exitcode=0x00000009 Kernel Offset: disabled > > >> --- [ end Kernel panic not syncing: Attempted to kill initf > > >> exitcode=0x00000009 1--- - > > >> > > >> I cannot capture the exact oops via any other means, although I can > > >> send the original camera pictures that I captured the text from, on > > >> request. > > > > > > By default I didn't get to see any messages, > > > > BTW: that was a stupid error on my side, I get them now. > > > > > the VM just hangs when > > > switching to root. Did anyone else already report or even track this > > > down already? Guess otherwise I need to take a closer look and maybe > > > start bisecting... > > > > On a quick looks above problems seems to be similar to the one already > > reported wrt to WCHAN: > > https://lore.kernel.org/stable/YZV02RCRVHIa144u@fedora64.linuxtx.org/ > > > > Greg, is there any reason why you didn't drop them from 5.14.y as well, > > as you did for 5.15.y: > > https://lore.kernel.org/all/YZYLC9D6zpUneYtn@kroah.com/ > > > > Should I try reverting these three and see if the situations improves? > > I will push out a new 5.14 release in a few hours with those commits > reverted, as yes, you are right, they should not be there if I have > dropped them from 5.15.y Should be resolved in 5.14.20. If not, please let me know. thanks, greg k-h